| Full lesson | Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle} |
| Which subject | Mathematics |
| What topic | addition and subtraction |
| What length (min) | 45 |
| What age group | Year or Grade 4 |
| Class size | 30 |
| What curriculum | VC2M3A02 partitioning using materials and part-part-whole diagrams to develop subtraction facts related to addition facts, such as 8 + 7 = 15 therefore 15 − 7 = 8 and 15 − 8 = 7 VC2M4A01 using relational thinking and knowledge of equivalent number sentences to explain whether equations involving addition or subtraction are true; for example, explaining that 27 − 14 = 17 − 4 is true and using a number line to show the common difference is 13 |
| Include full script | |
| Check previous homework | |
| Ask some students to presents their homework | |
| Add a physical break | |
| Add group activities | |
| Include homework | |
| Show correct answers | |
| Prepare slide templates | |
| Number of slides | 5 |
| Create fill-in cards for students | |
| Create creative backup tasks for unexpected moments |
Addition and Subtraction
Year 4
Mathematics
30 students
| Step Number | Step Title | Length (Minutes) | Details |
|---|---|---|---|
| 1 | Introduction | 5 | Briefly introduce the lesson topic. Explain the importance of addition and subtraction in daily life. |
| 2 | Direct Instruction | 10 | Demonstrate addition and subtraction using part-part-whole diagrams. Use examples to illustrate the concepts. |
| 3 | Group Activity | 15 | Divide the class into groups of 5. Each group will use manipulatives to create part-part-whole diagrams for different addition and subtraction facts. Every group will present their findings to the class. |
| 4 | Independent Practice | 10 | Distribute worksheets that include problems related to addition and subtraction, encouraging the use of number lines to solve. |
| 5 | Review and Relational Thinking | 5 | Discuss the importance of verifying equations. Use the number line to demonstrate common differences in equations. |
| 6 | Homework Instructions | 5 | Distribute homework assignments related to addition and subtraction concepts. Ensure students understand what to complete by providing examples. |
This structured lesson plan is designed to engage Year 4 students in mastering addition and subtraction through various interactive methods in accordance with the Australian national curriculum.
"Good morning, everyone! Today, we’re going to learn about addition and subtraction. These are two important mathematical operations that we use every day, from counting our money to figuring out how many friends we have over at a party. Can anyone tell me why knowing addition and subtraction is important in our daily lives?"
(Pause for responses.)
"Great answers! By the end of today, you’ll be able to partition numbers and understand how addition and subtraction are related. Let’s dive in!"
"To start, I’m going to show you how to use part-part-whole diagrams for addition and subtraction. Let’s look at this diagram on the board."
(Draw a part-part-whole diagram.)
"Here we have the whole number at the top and the two parts below. For example, if we have the whole number 10, we can divide it into two parts: 4 and 6. This represents the addition fact: 4 plus 6 equals 10."
"Now, if we wanted to think about subtraction using the same parts, we could say: What do we take away from 10 to get to 4? The answer is 6! Therefore, 10 minus 6 equals 4."
"Let’s do one more example together. If the whole number is 8, what parts can we create? How about 3 and 5?"
(Pause for student input, confirm correct responses.)
"Wonderful! Remember, for every addition fact, there is a matching subtraction fact that we can find using these diagrams."
"Now it’s your turn! I will divide you into groups of 5. Each group will receive some manipulatives like counters or blocks. Together, you will create your own part-part-whole diagrams using different addition and subtraction facts. Choose one whole number and come up with two parts."
"After you’ve created your diagrams, each group will present their findings to the class. You will have 15 minutes to work, and I will walk around to assist if needed. Let’s get started!"
(Give groups time to work. Walk around, offering support.)
"Time is up! Now, I’d like everyone to take out your worksheets. These worksheets have problems related to addition and subtraction. Remember, you can use the number lines provided at the top of your worksheets to help you solve the problems."
"Try to complete as many of the problems as you can in the next 10 minutes. If you finish early, you can check your answers with a partner. Ready? Go!"
(Give students time to complete the worksheets.)
"That was great work, everyone! Let’s come back together as a class. Who can remind me why it’s important to check our work in addition and subtraction?"
(Pause for responses.)
"Exactly! It helps us ensure our answers are correct. Now, let’s take a look at this number line."
(Draw a number line on the board.)
"As we discuss equations, we can see how each step connects. For example, if we go from 4 to 10, that’s a jump of 6. But if we start at 10 and go back to 4, we land on a jump of -6. Hence, 10 minus 6 equals 4!"
"Does anyone have any questions about verifying equations or using the number line?"
"Before we finish today’s lesson, I have a homework assignment for you. Each of you will receive a worksheet that contains problems on addition and subtraction. I want you to solve the problems and explain your reasoning for each answer."
"Make sure to use the methods we talked about today, like the part-part-whole diagrams and number lines. You will need to turn this in during our next class. If you have any questions about the homework, feel free to ask now."
(Distribute homework assignments and clarify any instructions needed.)
"Great job today, everyone! I look forward to seeing you all next class, and remember, practicing at home will help you master these important skills!"